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b. Matematika SLTP 2.. - SMPN 5 Malang

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11. EBTANAS-SMP-86-40<br />

Jika'diketahui sin x = 0,6 maka cos x = ...<br />

A. 0,40<br />

B. 0,50<br />

C. 0,70<br />

D. 0,80<br />

1<strong>2.</strong> EBTANAS-SMP-86-41<br />

Dari diagram di samping, harga sin α° = ...<br />

A.<br />

B.<br />

C.<br />

D.<br />

4<br />

3<br />

4<br />

5<br />

3<br />

4<br />

3<br />

5<br />

13. EBTANAS-SMP-85-06<br />

7<br />

Jika nilai cos A = dan sudut A dikuadran ke IV,<br />

25<br />

maka nilai tan A = ...<br />

A.<br />

7<br />

24<br />

24<br />

B. –<br />

7<br />

C.<br />

25<br />

24<br />

24<br />

D. –<br />

25<br />

14. EBTANAS-SMP-89-36<br />

Ditentukan 0° < α < 180°, sin α = 5<br />

adalah<br />

A.<br />

B.<br />

C.<br />

D.<br />

4<br />

5<br />

4<br />

−<br />

5<br />

4 4<br />

atau −<br />

5 5<br />

4 4<br />

dan −<br />

5 5<br />

15. EBTANAS-SMP-91-45<br />

Nilai sin 50° sama dengan nilai ...<br />

A. cos 50°<br />

B. sin 130°<br />

C. sin 230°<br />

D. cos 310°<br />

16. EBTANAS-SMP-94-35<br />

Ditentukan sin 35 o = 0,574, sin 55 o = 0,819<br />

Nilai sin 125 o = …<br />

A. 0,574<br />

B. 0,819<br />

C. –0,574<br />

D. –0,819<br />

2 . Nilai cos α<br />

45<br />

17. EBTANAS-SMP-85-11<br />

8<br />

Jika sin A°= dengan 0° < A°

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